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What is the power in watts when 7500 J of energy are used in 5 h?
Wiki User
∙ 12y ago
Although most of the time power is measured in Watts, it can also be expressed as Js-1.
So in your question, you are given the amount of joules and the time in hours. First, convert 5 hours to seconds. There are 60 mins in an hour and 60 seconds in a minute.
So that's going to be 5x60x60 = 18000 seconds
Now all you do in divide the number of joules by the number of seconds to work out the power.
So that's 7500/18000 = 0.41666666666...
approximately, 0.42Js-1(2dp) and thats the same as 0.42W (2dp)
Wiki User
∙ 12y ago
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How much power is used if the 950 N person lifted 3 meters?
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How you convert 36watts in joules?
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What is the unit of measurement used to express the energy emitted per second?
Power. In SI, energy is measured in Joule, and power is measured to watts (= Joule per second).Power. In SI, energy is measured in Joule, and power is measured to watts (= Joule per second).Power. In SI, energy is measured in Joule, and power is measured to watts (= Joule per second).Power. In SI, energy is measured in Joule, and power is measured to watts (= Joule per second).
What is watts and what is watts measured in?
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Is the unit used to measure electric power?
Watts. Also for any other type of power (energy / time), that is, for transfer of energy that is not electrical in nature.
What label is used for power?
Watts measures power. It is abbreviated simply with a W. It is energy used (or work) over time. Thank you. So what does 1 lb = 4.45 N mean using the label used for power? If Watts measures power and is abbreviated with a W and is the label that is used for power, then what is the label used for Work?
Why watts is used in consumer power meters?
Consumers do not normally have 'power meters'; they normally have 'energy meters', which are used measure the amount of energy being purchased from the electricity supply company. 'Power meters' are wattmeters, which measure power -i.e. the rate at which you use energy. Energy meters measure energy in units called kilowatt hours, whereas wattmeters measure power in watts. Your electricity supply company isn't really interested in the power of your residence, only the energy consumed.
What is the power when energy is used at the rate of 350 joules per sec?
350 watts, about .47 horsepower
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Lots of units are used to measure electricity, depending on what aspect you want to measure. For example: Voltage is measured in volts Current is measured in amperes Resistance (as well as impedance) is measured in ohms Power is measured in watts Capacitance is measured in coulomb Inductance is measured in henries etc.
What power was used if it took 2s?
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What is the watts equivalent of 231000 joules?
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How much power is required to do 40 J of work on an object in 5 seconds?
Power = (energy used) / (time to use that much energy) = 40/5 = 8 watts
What is a word that means unit of electrical energy which is a 1000 watts of power used for one hour?
Kilowatt hour
What unit is household electricity measured in?
watts or kilowatts are used to measure power, which is how quickly energy flows, and electrical energy is measured in kilowatt-hours. A kilowatt-hour is also known as a Unit of electrical energy, and it is the amount of energy used when a power of 1 kilowatt flows for 1 hour.
